Samson 3730-4, Mounting And Operating Instructions

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Error codes – Recommended action Condensed status alarm active, when prompted, Err appears.
Initialization errors
(indicated on the display by the condensed status with the corresponding classification)
50
x < range The value supplied by the measuring signal is either too high or
too low, the measuring sensor is close to its mechanical limit.
• Pin positioned incorrectly.
• Bracket slipped in case of NAMUR attachment or positioner is
not central.
• Follower plate incorrectly attached.
Recommended action Check attachment and pin position, set operating mode from
SAFE to MAN and re-initialize the positioner.
51
∆
x > range
The measuring span of the sensor is too low.
• Pin positioned incorrectly.
• Wrong lever.
A rotational angle smaller than 16° at the positioner shaft creates
just an alarm. An angle below 9° leads to the initialization being
canceled.
Recommended action Check attachment and re-initialize the positioner.
52
Attachment • Positioner attachment incorrect.
• Nominal travel/angle (Code 5) could not be achieved during
initialization under NOM (no tolerance downwards
permissible).
• Mechanical or pneumatic error, e.g. wrong lever selected or
supply pressure too low to move to the required position or
pneumatic fault.
Recommended action Check attachment and supply pressure. Re-initialize the
positioner.
Under certain circumstances, it may be possible to check the
maximum travel/angle by entering the actual pin position and
then performing an initialization under MAX.
After initialization has been completed, the Code 5 indicates the
maximum achieved travel or angle.
53
Init time > The initialization routine lasts too long. The positioner returns to
its previous operating mode.
• No pressure on the supply line or there is a leak.
• Supply air failure during initialization.
Recommended action Check attachment and supply pressure.
Re-initialize the positioner.
122
EB 8384-4 EN
Appendix